Can I install the app on more than one device? March 06, 2016 20:52 Yes, you can install the app on as many devices as you like. Related articles How do I log into the app? What can I do with the InterCity app? Are you planning to add more features and functions to the app? Can I use the app if I have a FlexiPass or TravelPass? How do I pay for my booking via the InterCity website?